Setts



(No Model.) 2 Sheets-Sheet '1.

B. H. KAVANAGH & E513. WINKLEY. STONE WORKING MACHINE.

No. 467,937. a PatentediFeb. 2, 1892.

Fig.1.

WITNESSES N VEN 7 2? R5:

M M i (No Model.) 2-Sheets-Sheet 2 E. H. KAVANAG H & E. E. WINKLEY. STONE' WORKING MACHINE.

No. 467,937. Patented Feb. 2, 1892.

UNITED STATES PATENT OFFICE.

EDYVARD ll. KAVANAGII AND ERASTUS E. \VINKLEY, OF LYNN, MASSACHU- SETTS; SAID XVINKLEY ASSIGNOR TO SAID KAVANAGH.

STONE-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 467,937, dated February 2, 1892.

Application filed June 8, 1891. Serial No. 395,433. (No model.)

To all whom, it may concern: forth. On the rod R beneath the lower shoul- Be it known that we, EDWARD II. KAVA- der of frame A is a nut 7, free to slide on rod NAGH and ERAsTUs E. INKLEY, both citi- R, but provided with a set-screw, so that it ZGHS of the United States, and residents of may be secured in any desired position 55 Lynn, in the county of Essex and Commonthereon,thereby preventing the frame Afrom wealth of Massachusetts, have inventeda new moving downward on said rod when the and useful Stoneorking Machine, of which thumb -screw 11 is loosened so as to allow the following is a specification. frame A to swing horizontally.

Our invention. relates to improvements in In theframeAis mounted the shaft B, which 60 IO machines of the above class; and it consists is adapted to slide longitudinally through its of an adjustable frame in which is mounted bearingsll and to rotate therein. To oneend a tool-carrying shaft free to rotate and slide of shaft B is attached a tool-holding device K. in its bearings, a threaded shaft also free to The bevel-gear O is splined to shaft B, so as rotate, both of which are connected with a to rotate therewith and leave the shaft B free 6 5 [5 rotating shaft also mounted in said frame, so to slide through the bearings I I, as hereinas to be rotated thereby, and a connecting-bar after set forth. The gear 0 is held in posiconnecting said threaded shaft with the tooltion by the shoulder forming the bearing I. carrying shaft, so that the rotation of the Meshing withthe gearOisagearD,iiXed to the threaded shaft produces a sliding motion of shaft E, to which is attached the operating- 7c the tool-carrying shaft. lever F. To the gear D a pin 13 is attached, Our invention further consists of improvewhich upon each revolution of the gear D ments in boringtools adapted to be used in comes in contact with the toothed wheel (I, and which form part of said machine. causing a partial revolution thereof. The

The object of our invention is to provide a toothed wheel d is mounted upon and revolu- 75 simpleand cheap device forthc purposes hereble with the shaft H, the upper portion of inafter set forth. which is threaded. Between the shafts B and Our invention is illustrated by the accom- H is a rigid guide-shaft G, on which a bar L panying drawings, in whichis arranged to slide. The shaft B passes Figure lis a side view thereof with boringthrough one end of the bar L and is secured 8o 0 tool inserted. Fig. 2 is a section along I) Z), thereto by a shoulder and nut, preventing Fig. l. Fig. 3 is a detailed View of the device longitudinal motion, but leaving shaft 13 free for controlling the feed. Fig. 4 is a bottom to rotate. The other end of the barL is proview of our improved boring-tool. Fig. 5 is a vided with a circular aperture 71., (see Fig. 4,) section along 0 c, Fig. 4. Fig. 6 is aside view through which the shaft II passes, and a por- 85 5 showing attachment of frame to vertical rod. tion of the interior of which is grooved, the Similar letters and numerals refer to simigrooves engaging with threads on shaft H.

lar parts in the several views. Through the aperture h the bar L is divided The following is a description in detail of and the parts hinged together and heldinconour invention. tact by the thumb-screw The grooved por- 9o A rod R is rigidly set in the lugs 8 and 9, tion of the interior of aperture h is upon the which are attached to any convenient upright part I, so that when the part I is thrown out standard and which hold tll'e rod R in a verof contact the shaft H passes freely through tical position. A frame A is hung on the rod the bar L,,and when in contact cannot be Rby means of shoulders projecting therefrom, moved therein, except by the revolution 95 5 through which the rod Rpasses. The frame thereof.

A may be swung horizontally about the rod Our improved boring-tool consists of two R, and may also be raised and lowered upon concentric cylinders set on the bottom plate I, the same. One of the bearings of rod R in thus forming an inner and outer reservoir 0' frame A is made in two parts connected by and 1', adapted to carry, respectively, water I00 a thumb-screw 11, which may be set so as to and sand. The outer cylinder is secured to prevent any motion of frame A, as above set the shoulders e c e e, connecting it with a contral shaft 8, which is adapted to be set in device K hereinbefore referred to. To the outer cylinder is also attached the cutting parts a; a: a: extending below plate t. (See Fig. 1.) These parts may be of any desired shape; but we find the most convenient form to be, as shown in the drawings, a strip of metal or other suitable material, having a fiat bottom surface which comes in contact with work. Leading from the reservoirs 1' and r are the passages a) v o v and c v v c, which open at or near the circumference of the outer cylinder and in the path of the cutting parts as the tool is rotated.

Itis evident that other forms of stone-working tools may be inserted in device K and operated by the mechanism herein first described, and weconsider our invention to cover such use thereof.

The operation of our invention is as follows: A tool is fixed in device K and brought in contact with the work-by bringing frameA into desired position.- Power is then applied to the lever F andshaft E rotated, and rotary motion communicated to shaft B by the connecting-gears O and D, the tool in device K thus receiving rotary motion. As the gear D rotates, the pin 19, striking the toothed wheel d, rotates shaft H, thereby moving the bar L along the shaft G, thereby imparting longitudinal motionto shaft B and feeding the tool into the work. When desired to rotate tool without feed, the pin 19 may be removed. The device shown in Fig. at enables the tool to be removed quickly from work, the part I being thrown out by thumb-screw 3. When the boring-tool is adjusted in device K, the'reservoirs r and r are filled with sand and water, respectively, and the jar of the machine in operation causes the Water and sand to flow out through passages 'u 'u v, &c., and

o 2; o, 850., in the path of the cutting parts,

which, acting with the same, grind a circular slot inthe stone.

We claim as our invention, and desire to secure by Letters Patent, in a stone-workin g machine 1. The combination of averticallyandhorizontally adjustable frame A, a shaft B, m ounted therein and free to rotate or slide longitudinally, a shaft E, to which power is applied, carrying a gear D in mesh with a gear 0, splined to the shaft B, a threaded shaft H, geared to theshaft E, so as to be" rotated by the rotation thereof, and a connecting-bar connecting the shaft 13 with the threaded shaft H, so that longitudinal motion is imparted to the shaft B by the rotation of the shaft H, all substantially as set forth, and for the purposes specified.

2. The combination of the frame A, the shaft B, free to rotate or slide longitudinallyin the bearings I I, the tool-carrying device K, attachedthereto, a gear O,- splined to shaft 13 and arranged to rotate therewith, and through which shaft Bis free to slide, a gear D in mesh with gear 0 and attached to shaft E, to which power is applied, a threaded shaft H, adapted to be rotated-by gear D, and a cross-bar L, arranged to slide on a guide-shaft G and connecting the shaft B with the threaded shaft H, so that a longitudinal motion is imparted to shaft B-by rotation of shaft H, the shaftB being left free to rotate, all substantially as set forth, and for the purposes specified.

3. The combination, with a-frame and shaft mounted therein and adapted to receive rotary and longitudinal motion, of concentric cylinders adapted to be secured to said shaft and closed at one end to form reservoirs adapted to carry, respectively, sand and water, cutting parts extending below the bottom.

of said reservoirs, and passages arranged to discharge the sand and watertherefrom in the path of the cuttingparts, all substantially as set forth, and for the purposesspecified.

4. A rotary boring-tool consisting ofconcentric cylinders secured to a central shaft and closed at one end to form reservoirs adapted to carry, respectively, sand and water, cutting parts extending, below the bottom of said reservoirs, and passagesarranged to discharge the sand and water therefrom in the path of the cutting parts as the tool is rotated, all substantially as set forth, and for the purposes specified. Y

EDWARD H. KAVANAGH. ERASTUS E. VVINKLEY.

Witnesses:

BENJAMIN PHILLIPS, HARRY O. PARTRIDGE. 

